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CONFIG_DMAR_DEFAULT_ON: Enable DMA Remapping Devices by default
General informations
The Linux kernel configuration item CONFIG_DMAR_DEFAULT_ON has multiple definitions:
Enable DMA Remapping Devices by default found in arch/ia64/Kconfig
The configuration item CONFIG_DMAR_DEFAULT_ON:
- prompt: Enable DMA Remapping Devices by default
- type: bool
- depends on:
CONFIG_DMAR - defined in arch/ia64/Kconfig
- found in Linux kernels: 2.6.29–2.6.39, 3.0
Help text
Selecting this option will enable a DMAR device at boot time if one is found. If this option is not selected, DMAR support can be enabled by passing intel_iommu=on to the kernel. It is recommended you say N here while the DMAR code remains experimental.
Enable DMA Remapping Devices by default found in arch/x86/Kconfig
The configuration item CONFIG_DMAR_DEFAULT_ON:
- prompt: Enable DMA Remapping Devices by default
- type: bool
- depends on:
CONFIG_DMAR - defined in arch/x86/Kconfig
- found in Linux kernels: 2.6.29–2.6.39, 3.0
Help text
Selecting this option will enable a DMAR device at boot time if one is found. If this option is not selected, DMAR support can be enabled by passing intel_iommu=on to the kernel. It is recommended you say N here while the DMAR code remains experimental.
Enable DMA Remapping Devices by default found in drivers/iommu/Kconfig
The configuration item CONFIG_DMAR_DEFAULT_ON:
- prompt: Enable DMA Remapping Devices by default
- type: bool
- depends on:
CONFIG_DMAR - defined in drivers/iommu/Kconfig
- found in Linux kernels: 3.1
Help text
Selecting this option will enable a DMAR device at boot time if one is found. If this option is not selected, DMAR support can be enabled by passing intel_iommu=on to the kernel.
Hardware
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